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Syzygy question
Posted: Fri Mar 16, 2018 6:01 pm
by cc2150dx
Is there a way to test the integrity of 5-men syzygy tablebases. A program perhaps?
Thanks.
Re: Syzygy question
Posted: Fri Mar 16, 2018 6:15 pm
by Dann Corbit
cc2150dx wrote:Is there a way to test the integrity of 5-men syzygy tablebases. A program perhaps?
Thanks.
From README.md:
"There are five programs:
* rtbgen for generating pawnless tablebases.
* rtbgenp for generating pawnful tablebases.
* rtbver for verifying pawnless tablebases.
* rtbverp for verifying pawnful tablebases.
* tbcheck for verifying integrity of tablebase files based on an embedded
checksum.
**Note 1:** Since a correct set of checksums is known, there is no need for anyone to run rtbver and rtbverp.
**Note 2:** The checksums are **not** md5sums. However, correct md5sums are known as well, and these can also be used to verify integrity. See
http://kirill-kryukov.com/chess/tablebases-online/
**Usage:** `rtbgen KQRvKR` (or `rtbgenp KRPvKR`)
Produces two compressed files: KQRvKR.rtbw and KQRvKR.rtbz. Both files
contain an embedded checksum."
Re: Syzygy question
Posted: Fri Mar 16, 2018 6:49 pm
by Jouni
Chessbase is selling 6 piece USB stick for €179.90 - not complete set
.
Re: Syzygy question
Posted: Fri Mar 16, 2018 6:53 pm
by Dann Corbit
Jouni wrote:Chessbase is selling 6 piece USB stick for €179.90 - not complete set
.
You can build the full set in one weekend.
I guess one of my high end machines could build them in a few hours (e.g. 60 threads and many TB of ssd).
I am testing the 7 man code by building the full 6 man set right now.
I will do a verification when done.
So far 166 patterns done:
Code: Select all
2018-03-15 08:57 PM 232 KBvK.txt
...
2018-03-16 10:29 AM 2,595 KBNvKNN.txt
in 11 hours.
Total patterns for the 6 man set is 510.
Re: Syzygy question
Posted: Sat Mar 17, 2018 5:13 am
by Ferdy
cc2150dx wrote:Is there a way to test the integrity of 5-men syzygy tablebases. A program perhaps?
Thanks.
Have a look at this,
http://talkchess.com/forum/viewtopic.ph ... ew=threads
Re: Syzygy question
Posted: Sat Mar 17, 2018 5:45 am
by cc2150dx
Thanks for all the replies
But unfortunately Joshua's link
http://olympuschess.com/EGTBChecker/EGTBChecker.zip shows me this:
Not Found
The requested URL /EGTBChecker/EGTBChecker.zip was not found on this server.
Apache/2.4.7 (Ubuntu) Server at olympuschess.com Port 80
Re: Syzygy question
Posted: Sat Mar 17, 2018 5:57 am
by Ferdy
cc2150dx wrote:Thanks for all the replies
But unfortunately Joshua's link
http://olympuschess.com/EGTBChecker/EGTBChecker.zip shows me this:
Not Found
The requested URL /EGTBChecker/EGTBChecker.zip was not found on this server.
Apache/2.4.7 (Ubuntu) Server at olympuschess.com Port 80
I have a folder in my disk, uploaded to google drive.
https://drive.google.com/open?id=1nHX1R ... kwi8bvFyuM
Re: Syzygy question
Posted: Sat Mar 17, 2018 12:49 pm
by syzygy
cc2150dx wrote:Is there a way to test the integrity of 5-men syzygy tablebases. A program perhaps?
There are md5sums available:
http://kirill-kryukov.com/chess/tablebases-online/
The TB files also have an integreated checksum which can be verified with tbcheck, but those are always confused with md5sums, so I would recommend to use the md5sums. (Just follow the instructions on the page I linked to.)